Sharp DV-6603H (serv.man8) Service Manual / Technical Bulletin ▷ View online
CTV2000 08 17
Month of Issue: August 2000
Classification:
White
TELEVISION TECHNICAL BULLETIN
Page 1 of 1
Sharp Electronics (UK) Limited
Reference TT04082000-4
Revision 1
White Carry out as required
Yellow Carry out as required and whenever the unit comes in for service
Red Carry out on all units
MODELS
DV51083H
DV5903H
DV59083H
DV6603H
DV66083H
SYMPTOM Dead or tripping.
CAUSE
Line output transformer or problems in the power supply.
ACTION
Disconnect R632 and turn the set on.
If the HT comes up to 150V, then it is likely that the fault is in the line output stage.
This could be the line output transistor (2SD1554 in 51cm sets or 2SD1546 in
59/66cm sets) or line output transformer.
If the HT comes up then shuts down again, it is possible that the vertical output IC,
IC501 is faulty. Sometimes when IC501 fails, it will take out R501 (supply reed
resistor). Note that in this receiver, the vertical output IC obtains its supply from the
line stage.
If the HT does not come up, then the fault is probably is probably in the power supply,
IC701 or Q701 are suspect. If either IC701 or Q701 are found to e faulty, change both
devices.
REF NO
DESCRIPTION
PART NUMBER
PRICE CODE
IC701
RH-IX1434BMZ
IC, TEA2261
AW
IC501
RH-IX1413BMZZ
IC, TDA8175
AS
R501
VRG-RL2HB1R0K
Resistor, 1R 0.5W
AB
T600
RTRNF1786BMZZ
51cm LOPT
BG
T600
RTRNF1783BMZZ
59/66cm LOPT
BH
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